Telephone system



Jan. 12 1926. 1,569,006

G. DEAKIN TELEPHONE SYSTEM Filed Sept. 13, 1924 //7 venfori Gem/dDew/fin Patented Jan. 12, 1926.

1,569,006. UNITED STATES PATENT OFFICE.

GERALD DEAKIN, OF ANIl/VERI, BELGIUM, ASSIGNOR T WESTERN ELECTRIC COM-PANY, INCORPORATED, OF NEEV YORK, N. 'Y., A CORPORATION OF YOR'K.

TELEPHONE SYSTEM.

Application filed September 13, 1924. Serial Ito. 737,478.

To all w/zomit may concern:

Be it known that I, GERALD DEAKIN, a citizen of the United States ofAmerica, residing at Antwerp, Belgium, have 111- 5 vented certain newand useful Improvements in. Telephone Systems, of which the following isa full, clear, concise, and exact description.

This invention relates to telephone exchange systems and moreparticularly to such systems as are provided for dealing with thetraffic of private branch exchanges. The system described in the presentspecification has been designed particularly for dealing with thetraffic between subscribers of private branch exchanges and a mainexchange.

in accordance with one feature. of the invention, the telephone systemcomprises an automatic switch adapted to be selectively operated toestablish both outgoing calls from and incoming calls to a line.

Preferably such an automatic switch may consist of a line finder which,in addition to selecting a calling line, may be set, under the controlof an operator, upon the terminals of a desired line.

The line finder switch is preferably controlled in its operation toextend an incoming call to a desired line by means of an opcratorsequipment in which the desired line and the line with which said finderswitch is associated are represented each by means of a key, theoperation of both keys causing the line finder to establish an incomingconnection to the desired line.

In accordance with a further feature of the invention, the operation ofthe key, associated with the desired line, in the operators equipmentcauses a signal device to operate, should the desired line be busy uponthe operation of the key.

in accordance with a further feature of the invention, the line finderswitch comprises a pair of test brushes, one normally connected tocontrol the switch in its hunting operation over a calling line, theother connected by means controlled by the operator to adapt the switchto extend an incoming connection to the desired line.

In accordance with another feature of the invention, a signal device isarranged to be operated when the line finder is set upon the terminalsof the called line.

The invention will be more fully under-.

. exchange apparatus and the other connected with his line on theterminals of the linefind'er switches. In either case, the subscriberisprov.1 ded with two bells or an annunclator arranged to distinguishbetween calls from the local exchange and from the main exchange. Theapparatus for establishing local calls may be of any usual well knowntype and forms no part of the present invention.

The line finder switch 9 is one of a group of line finder switcheshaving access to the calling line. This group of line finders is set inaction by a starting circuit apparatus indicated below the horizontaldotted line in the lower left hand corner of the drawing and consists ofthe starting relays 6 and 8 and the connections leading therefrom. Uponthe initiation of a call, a group of line finders is set in operation inthe usual manner in search of the calling line. Each line finder isoperated by the self-interrupting stepping magnet Hand is controlled inits operation by a test relay 19 which energizcs when the calling lineis seized to disconnect the stepping magnet 14.

A link circuit leading to the main exchange'is indicated at 32 and 33.Normally this link is disconnected from the line brushes of the linefinder switch by means of the relay 23 and connected through the backcontacts of this relay to the attendants apparatus indicated above thehorizontal dotted line in the upper, part of the drawing.

When a call has been completed over the link circuit, the relay 23energizes and completes the through connection from the brushes (4 and bof the line finder over the conductors of the-link circuit to the mamexchange. The attendants apparatus indicated in the upper portion of thedrawing idicated in dotted lines.

consists of the usual head-set and dial switch and a number of keys 25,26, 27 34 and 40, the purpose of which will be'more fully explained inthe description of the operation of the system.

At .the left hand side of the drawing and above the starting circuitapparatus, as

hereinbefore mentioned, is indicated an apparatus for giving a signal tothe calling subscriber in case all the link circuits leading to the mainexchange are busy. This signal apparatus consists of a vibrating relay35 which interrupts its own circuit to produce a tone in the secondarywinding located upon its core and this winding is connected to the ringconductor of the called line through the line relay 3.

This invention is of such a nature that it will be best understood fromthe following; description of the operation of the system:

Upon the subscriber at substation 1 desiring connection with the mainexchange, he throws the switching key 2 so as to connect his substationcircuit to the terminals of the line finder switch 9 therebydisconnecting his line from the local private branch exchange apparatus,the leads to which are in- I He then removes his receiver, therebycompleting a link circuit for the line relay 3 associated with his lineand W1 'ch may be traced from battery, contact of relay 5, through thewinding of relay 3, right back contact of relay .1:, ring conductorthence through the outer left contact of switching key 2, through thesub station 1, back through the outer right contact of key 2, left backcontact of relay 4 to ground. The line relay 3 energizes in this circuitand closes a circuit for the relay 6 from battery, inner contact of key7 through the winding of relay 6 to ground at the left armature of relay3. Relay 6 is made slow-to-release in the usual well known manner andupon energizing closes the circuit of relay 8 and other similar relaysin parallel therewith. At its right'hand contact relay 3 connects thelow resistance left.

hand winding of cut-off relay 4: to the test terminal of the callingline. v

The relay 8, upon energizing, closes the circuits of the power magnets.such as 14, of those idle line finder switches 9. which have access tothe calling line. The magnet 14; operates to step the brushes (1, 7), c,and (Z over the contacts in the bank of the line finder switch 9 untilthe teri'ninals of the calling line are reached when the circuit of thetest relay l9 is'closed as follows: from ground, resistance 20, outerleft front contact of relay 8, right contact of relay 21,make-before-break contact of relay 22 through the winding of relay 19,brush 0 and terminal 9 of the line finder, right contact of relay 3,through the left hand windmg of relay 4 to battery. The test'relay 19'energizes in this circuit. The test relay also connects at its frontcontact its own Winding directly to ground at the inner right armatureof relay 22. The cut-off relay 4 energizes in series with the test relay19 and disconnects the line relay 3 but maintains its own connection tothe test terminal g of the calling line through its right hand windingand outer right armature and contact. The direct connection of groundthrough the winding of test relay 19 maintains the calling line busy toother line tinder switches. I Should a double test occur, that is,should two test relays 19 of a pair of line finder switches energizeowing to the simultaneous engagement of the brushes (1 upon the terminal57 of the calling line, the increase in resistance due to introductionof the right hand winding of the cut-oif relay stupon the energizationof this latter relay, will cause one or both of these test relays todeenei'gize owing to the increase in resistance of the test circuit,whereby the line finder switch or switches move their brushes oil theterminals of the calling line.

Upon the energization of the relay 19 when the brushes (6 to (Z makeengagement with the terminals 6 to h respectively of a *alling line. thecircuit of the power magnet continues through the winding of the relay23 and right armature of relay 24 to ground. The relay 23 is ofsuflicient resistance to prevent further operation of the magnet 14 inseries therewith. The relay 2", however, energizes in this circuit anddisconnects the key 25 from the main exchange end of the link circuit,and in place thereof connects the link circuit through to the callingline. The relay 23 removes ground from the circuit of relay 2 therebypreventing the attendant from listening to the conversation carried onover the link circuit, by throwing the switch 26. As the relay 24:cannot now be energized, no ringing current can be sent over the linkcircuit by the throwing of key 2?. Relay 23 disconnect-s ground from thelowermost contact on the key 25, thus making it impossible to energizethe relay 28, should key 25 be thrown. The relay 23 finally energizesthe relay 22. The connection of the link circuit through to the callingline connection upon the operation of the relay 23 causes the lowresistance relay 29 connected in the ring conductor to energize and thisrelay in turn energizes the slow-torelease relay 30. The relay 30energizes and connects the winding of the relay 23 to battery, throughresistance 31, thus maintaining the relay 23 energized until the callingsubscriber hangs up his receiver. The relay 30 being slow-to-releasedoes not release its armature when the quick acting relay 29 responds tothe dialing of the impulses. The energization of the relay 22 transfersthe ground connection of the resistance 20 maintaining the cut-off relay4 energized to the outer bottom armature of relay 23. The circuit of thecut-oil relay 4 now extends from battery, both windings of the relay inseries, terminal 9, brush 0, through the winding of relay 19, contactand outer right armature of relay 22, outer bottom armature of relay 23to ground.

The calling subscriber is now connected through the contacts of relay 23to the link circuit 32 and 33 leading to the main ex change. and if thisexchange is equipped with automatic apparatus the calling subscriberwaits for the usual dialing tone transmitted from the exchange beforedialing the number of the desiredsubscriber or if the exchange isequipped with manual apparatus, waits forthe answering of the Aoperator. It will be noted that the line circuit is free from allshunts. The sole impedance remaining in series with the circuit is thatof the relay 29 of low resistance. The connection is secret and may notbe disturbed by the attendant even if the keys 2", 26, 27 beforereferred to, or the key 34, orthe link trans-fer key 7 are operated.During conversation the relays 4, 19, 22, 29, 30 and 23 are energized.

At the end of the conversation the calling subscriber hangs up hisreceiver and the relay 29* deenergizes causing the release of relays 30and 23. The relay upon deenergizing opens the circuits of relays 22, 4and 19, the relay 22 being slow-to-release does not make its backcontact before the relay 19 releases.

hen all the link circuits are busy the sip; nal circuit is closed at thecontacts of the relays 22 of' the-link circuits through the winding ofrelay 5. This relay upon energizing disconnects direct battery from theline relays 3 of the calling lines and in place thereof connects theserelays to battery through an inductive winding of a vibratory buzzer andthe high resistance of relay 36. Now. when a calling subscriber attemptsto establish a call during the time all the link circuits are busy theline relay 3 does not operate, owing to the high resistance of relax 36.The relay 36, however, does operate and closes at its front contact thecircuit of the operating winding of the buzzer 35, thereby inducing atone in the secondary winding connecting in series with the line relay 3of the calling line, and as this relay is connected to the calling line,the tone will be heard in the receiver in the usual manner.

. Upon a call incoming over the link cirouit from the main exchange,ringing current from the main exchange operates the relay 37 which isbridged across the line through the back contacts of the relay 23, therelay 37 energizes and locks up through its right hand Winding, thecircuit being traceable? from battery, right hand winding of relay 37,lower normally closed contact of key 25, outer bottom armature of relay23 to ground. The relay 37 also closes a circuit through the winding ofrelay 2.1, and lights the link circuit lamp 38. The relay 21. uponenergizing opens the circuit of the magnet 14 of the line finder switch9 and thecircuit of the test relay 19 thereby holding the link circuitbusy against selection by a private branch exchange subscriber for anoutgoing call.

The attendant upon observing thesignal lamp 38 throws the key 25 whichenergizes the holding relay 28 from battery, through the winding ofrelay 28, contacts of key 25 to ground through the outer bottom armatureof relay 23. The throwing of the key 25 also closes the circuit of theguard lamp 39 and opens at its lower contacts the look ing circuitthrough the right hand winding of the link circuit relay 37 so that thisrelay deenergizes and opens the circuit of the link circuit lamp 38. Thekey 25 also connects the operators telephone set across the mainexchange end of the link circuit.

The relay 28, upon energizing,- connects a shunt across the linkconductors 32 and 33 for supervisory purposes, maintaining relay 21energized by connecting ground to this circuit at the left armature ofrelay 28 and closes a locking circuit for itself from battery, throughthe Winding of relay 28, upper contacts of release key 34, innerrightarmature of relay 28 to ground at the inner left armature of relay 22.The lamp 39 is connected in parallel to the winding of relay 28 in thiscircuit and accordingly continues to glow throughout the connectionuntil the release key 34 is thrown. The circuit remains in thiscondition and the attendant communicates with the calling party,requests the number of the desired line and then restores the key 25 tonormal position. The relay 28 remains energized over thelOOklIlgCIICUllZ before traced, and the guard lamp 39 continues to glow.The link circuit is held busy by the continued energization of the relay21.

The attendant now ascertains whether the line of the Wanted party isbusy. To effect this the attendant depresses the correct line transferkey 40. Should the line be busy, the relay 41' energizes by the closureof the circuit from battery, through the Winding of relay 41, leftcontacts of key 40, front contact and left armature of cut-off relay 4of the desired line, to ground. 3 The relay 41 upon energizing closesthe circuit of the pilot lamp 42, thereupon indicating to the attendantthat the desired line is busy. The

attendant now throws the key 25 and informs the calling party that thewanted line is busy and if the calling party decides to call again, hehangs-up his receiver and releases the connection at the central officeafter which the attendant restores the key 25 and releases the linkcircuit at the private branch exchange by momentarily depressing therelease key 34 which opens the locking circuit of the relay 28 whichdeenergizes and causes the relay 21 to deenergize.

If the wanted line is free, the attendant causes the line finder switch9 to move its brushes into engagement with the terminals of the line ofthe wanted party by simultaneously depressing the key 40 of the line ofthe wanted party and the key 7 of the link circuit over which the callhas been extended from the main exchange. This operation causes thepower magnet 14 to move the brushes a, b, c and (Z into engagement withthe terminals 6, f, g and 7b, respectively, of the wanted line. When thebrushes engage the terminals of the wanted line, outoff relay 4energizes as before explained, closing the circuit of the relay 41 whichin turn closes the circuit of the pilot lamp 42, when. the attendantreleases the keys 7 and 40. The setting of the line finder upon theterminals of the wanted line is effected in the'following manner: Thedepression of the keys 40 and 7 causes the. circuit of the power magnet14 on the line finder 9 to be closed in a circuit from ground, at theinner ri 'ht armature of relay 22, back contact of re ay 19, outerarmature of relay 43, through the winding of power magnet 14, leftarmature and front contact of relay 21, outer left contacts of key 7,back contact and left armature of rela 41 to battery. The test cir cuitof the nder switch is closed from ground, at the right armature of relay41, right contacts of key 7, inner right armature and back contact ofrelay 43, through the low resistance right hand winding of relay 43 tobrush 0? of the line finder 9. The depression of key 7 opens the circuitof the relay 6 so that the operation of no other finder switch isinitiated, thereby preventing the search for and selection of thedesired line so long as the key 7 is depressed. When the wanted line isreached, the circuit of the relay 43 is completed as before traced, tothe brush d and then through the terminal h, right contacts of key 40,through the left hand winding of relay 4, to battery. The relay 43energizes and opens at its outer armature the circuit of the steppingmagnet 14 of the line finder 9 thus bringing the brushes a, b, 0 and dof this line finder switch to rest upon the terminals of the wanted lineas designated by the depression of key 40. Simultaneously, the relay43closes the circuit of the test relay 19 over its inner right armatureand front contact. This relay energizes and locks up in the mannerbefore described directly to ground at the innerright armature of relay22. f

It will be noticed that the circuit of th 7 power magnet 14, beforetraced, extends to battery through the back contact and left armature ofrelay 41, thus if the desired line is busy, the relay 41 will beenergized upon the depression of key 40, and Wlll prevent the closure ofthe circuit of the magnet 14 before traced. Thus, an operator isprevented from extending a communication to a busy line.

When the relay 43 energizes, it opens at its inner armature the circuitof its low resis ance right hand winding, but the relay remainsenergized over its high resistance left hand winding. This operationprevents the energization of the relay 43 from efiecting the operationof the relay 19. l/Vhen the cut-off relay 4 energizes, the pilot relay41 is energized from battery, through the winding of relay 41, leftcontacts of key 40 to ground at the left armature of relay 4. The relay41 closes the circuit of the pilot lamp so that the pilot lamp 42 glowsand the attendant now releases the non-locking keys 7 and 40 and therelay 43 deenergizes.

When the keys 40 and 7 are released, the test relay 19 and the cut-offrelay 4 deenergize. A locking circuit is closed for the relays 4 and 19from ground, at the inner right armature of relay 22, armature and frontcontact of relay 19 and through the winding of this relay, brush 0 andterminal 9 on the calling line, to both windings of relay 4 in series tobattery. The relays 21 and 28 remain energized and the relay 21 opensthe locking circuit of the stepping magnet 14 of the line finder switch9 so that the relay 23 cannot become energized when the test relay 43,connected to the brush d of the line finder switch, is released, shouldthe starting relay 8 be energized owing to some other operator havinginitiated a call.

The attendant may now ring the wanted party by first throwing the key 26and then key 27. When the key 26 is closed, relay 24 and relay 50 areenergized in this circuit, from battery, through the winding of relay50, lowermost contact of key 26, through the winding of relay 24 toground at the outer bottom contact of relay 23. Relay 24 upon energizingconnects the ringing key 27 to the link circuits 32 and 33, and ringingcurrent is applied through the. contacts of the ringing key 27 to thelink circuit in the usual well known manner.

Upon restoration of the ringing key 27, the attendant remains connectedto the called line over the contacts of the key 26. Upon the response ofthe wanted party the circuit is established by relay 50, from ground atthe inner right armature of relay 50, through the left hand winding ofretard coil 51, inner top contacts of key 25, outer top contacts of key26, inner top contacts of key 27, the outer left armature of relay 24,brush a, terminal e, through the local subscribers-substation and backtoterminal f,

mam

ate, and this relay closes the circuit of the slow-to-release relay 30.The relay 23, however, does not operate when the slow-torelease relay 30attracts its armature owing to its circuit being opened at the back contact, of the relay 24, which is'energized at this time. The linkcircuit, therefore, re-

mains open, so that the attendant may con verse with thewantedpartyunheard by the callingparty at the main exchange, or the attendantmay converse with the calling party at the main exchange unheard by thecalled party by throwing key 25 without re: storing the key 26.. Whenthe desired party informs the operator that he will take the connectionthe attendantrestores key'26' .to normal position, and this operationreleases th relay 2d. The relay 2%, upon deenergizk ing, closes at itsback contact the circuit of the relay 23, which now energizes, closesthelink circuit through to the wanted party, and closes the circuit ofrelay 22 inthe manner before explained. The relay 22, upon energizing,opens the locking circuit of the relay 28 at its inner left armature.The relay ,38 deenergizes and opens the circuit of the relay 21 and ofthe guard lamp 39. The calling and the called parties are now connectedfor conversation over the conductors 32 and 33 of the link circuit, andit is impossible for the attendant to disturb or hear th conversation,no matter which key is thrown, the conversation being entirely secret.At the end of the conversation when the called party hangs up theconnection is released in exactly the same way as on an outgoingconnection as hereinbefore described.

It will be observed that the guard lamp 339 will glow upon the receiptof an incoming call and will continue glowing until the call is answeredby the desired party removing his receiver. In this way the tying-up ofa link for an unnecessarily long time interval is guarded against. -Ifthe call remains unanswered the operator, in order to release the link,must depress release key 34: which releases the local connection,removes the shunt across the conductors 32 and 33 and places the dial ofthe operators set in an operative condition for the control of anautomatic apparatus if provided.

Should the attendant desire to establish an outgoing link call and thentransfer it to a line of the local exchange, she proceeds in thefollowing manner :The keys 25.and 34 of any link circuit are thrown. Ifthe link circuit is idle, the guard lamp 39 associated therewith-lightimmed t y- -I-t it 'i l y."

i'islamp does 1i tg1ow.-. e'sth w got thek'ey- 2:1 afree lin-kcircuitclosesthe circuit. for relay, 28 from ground, oute'r'jbot .tom.arniature relay 2? lowermost off; normalcontact of key 25, through thewinding; at: rel y 28.; I 1 batte y e. el y: 2,8

energizes; and} closes the circuit of the; guard lamp 39 and of therelay 21in themanner hereinhe-fore explained. ,Tl1je;.guar d lamp,- 39lights and the rel y. 2 ope s the circu t of the powerinjagnet l t andof the test ,re lay-19 so that theiline,findelifii zm lntaihqd busyftoall outgoing callsestablishedhy subscribersa thrown. When the attendanthas obtained the, desired party, the key 34 is restored,,if it had beentln own,thus causing the relay.

The. throwing, of the key Bhremoves re tardation coil 10 from acrosstheili nk-circuit, conductors 32iand; .335; so that the attendantissetisnow, placed, directly acros s these con? ductors'i topthe mainexchange, and if the 1 tte1=...i full auto atic, h t endan qm y; dialfrom hertelephone'set in the usual way, in order to establish thedesiredconnectiom If the ma anges Q 't c m o bat: tery type, thereleasing key-34 need I10 e 28 t0 lo k-lip th ough s-inner r g t a -.1 I

tureand shunt to be'placed across the link circuit all as prevlouslydescribed for an incoming call. The attendant now transfers the call toany line of the local exchange in exactly the same way as if the callhad been an incoming call, as fully hereinbefore explained.

For night service certain subscribers may be connected to links to themain exchange in the usual way by throwing the night service key (notshown) which disconnects the line of a ubstation from the localapparatus and connects this line to the outgoing end of a link to themain exchange.

It will be seen that the line finder switch 9 operates with a huntingmotion to extend both outgoing and incoming calls thereby providing anexceedingly eflicient telephone system.

What is claimed is:

1. In a telephone system, subscribers lines, a finder switch in whichsaid lines terminate, a trunk, means responsive to a call on one of saidlines for operating said finder to extend such line to said trunk, anindividual key for each line, a key for said trunk, and means responsiveto the actuation of one of said line keys and said trunk key for causingthe operation of the finder to extend said trunk to the correspondingline as a called line.

2. In a telephone system, subscribers lines, a finder switch in whichsaid lines terminate, a trunk terminating in the brushes of said finderswitch, means responsive to a call on one of said lines for operatingsaid finder to extend such line to the trunk, an operators position,individual keys at said position one for each of said lines, a key forsaid trunk at the operators position, and means responsive to the jointactuation by the operator of one of said line keys and said trunk keyfor causing the operation of the finder switch to extend said trunk tothe corresponding line as a called line.

3. In a telephone system, subscribers lines, a finder switch in whichsaid lines terminate, a trunk serving for incoming and outgoing calls,means responsive to a call on one of said lines for operating the finderswitch to extend the calling line over said trunk, an operatorsposition, individual keys for each of saidlines and a key for saidtrunkat said position, a signal at the operators position, means responsiveto the actuation of one of said line keys and said trunk key for causingthe operation of the finder switch to extend said trunk to thecorresponding line, and means responsive to the actuation of theindividual line key for actuating said signal it the line is busy.

4. In a telephone system, subscribers lines, a finder switch, a trunkleading to said finder switch, means responsive to a call on one of saidlines for operating the finder switch to extend such line to said trunk,

individual keys for each of said. lines, a key for's'aid trunk, asignal, means responsive to the operation of .an individual key and saidtrunkkey for causing the actuation of the finder switch to extend thetrunk to a corresponding called line, means for rendering-said keysineffective to cause the operation of said finder switch if the calledline is busy, and means controlled by said keys when the called line isbusy for actuating said signal.

5. In a telephone system, lines, a line finder switch in which saidlines terminate,-brushes on said switch, a trunk circuit for completingincoming and outgoing calls, means for operating said switch to connectsaid trunk to one of said lines, an operators position, keys at saidposition, and two different test circuits each leading through difierentbrushes in said finder switch dependent upon whether a subscribers lineis calling or being called, one of said test circuits being under thecontrol of the subscriber and the other under the control'of said keysat the operators position.

In witness whereof, I hereunto subscribe my name this 21 day of AugustA. D., 199A.

GERALD DEAKIN.

subscribers DISCLAIMER 1,569,006.Gemlcl Deaicin, Antwerp, Belgium.TELEPHONE SYs'rEM. Patent dated January 12, 1926. Disclaimer filed July12, 1930, by the assignee, Western E loot Pic Company, Incorporated.

Hereby enters this disclaimer to the said claims of said Letters Patentwhich are in the following Words to wit:

1. In a telephone system, subscribers lines, a finder switch in whichsaid lines terminate, a trunk, means responsive to call on one of saidlines for operating said finder to extend such line to said trunk, anindividual key for each line, a key for said trunk, and means responsiveto the actuation of one of said line keys and said trunk key for causingthe operation of the finder to extend said trunk to the correspondingline as a called line.

2. In a telephone system, subscribers lines, a finder switch in whichsaid lines terminate, a trunk terminating in the brushes of said finderswitch, means responsive to a call on one of said lines for operatingsaid finder to extend such line to the trunk, an operators position,individual keys at said position one for each of said lines, a key forsaid trunk at the operators position, and means responsive to the jointactuation by the operator of one of said line keys and said trunk keyfor causing the operation of the finder switch to extend said trunk tothe corresponding line as a called line.

5. In a telephone system, subscribers lines, a line finder switch inwhich said lines terminate, brushes on said switch, a trunk circuit forcompleting incoming and outgoing calls, means for operating said switchto connect said trunk to one of said lines, an operators position, keysat said position, and two different test circuits each leading throughdifferent brushes in said finder switch dependent upon whether asubscribeii"s line is calling or being called, one of said test circuitsbeing under the control of the subscriber and the other under thecontrol of said keys at the operators position.

[Oyfioz'al Gazette J My 29, 1930.]

